Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 181520: What is the most reduced answer to 8 squared to the 3/10ths power?
Click here to see answer by Alan3354(69443)

Question 181523: In the problem, -5x squared minus 300=0, what is x?
Click here to see answer by Fombitz(32388)

Question 181522: What is 2-3i divided by 3-2i?
Click here to see answer by Alan3354(69443)

Question 181518: What is 6 divided by 2+3i?
Click here to see answer by Alan3354(69443)

Question 181526: What is the answer to -2 + (the square root of 9-5x)> or equal to 6?
Click here to see answer by ankor@dixie-net.com(22740)

Question 181530: What is the answer to(the square root of 2x-7) < or equal to (the square root of x+2)?
Click here to see answer by solver91311(24713)

Question 181703: cam amybody help me wtih how to do this:
x to the second power = -64
x to the second power + 48= 0
Click here to see answer by Mathtut(3670)

Question 181703: cam amybody help me wtih how to do this:
x to the second power = -64
x to the second power + 48= 0
Click here to see answer by stanbon(75887)

Question 181706: I need help with:
2x^2-9=3x^2
4(x-2)^2=-1

Click here to see answer by stanbon(75887)

Question 182044: Factor: x^2 - 275-11x + 25x
Not sure what to do here!
Click here to see answer by jim_thompson5910(35256)

Question 182040: Simplify 7/x + 1/x +5 all this over 4x/x +5.
I haven't a clue.
Click here to see answer by eperette(173)

Question 182450: (3+5i)/(3-5i)
Click here to see answer by jim_thompson5910(35256)

Question 182634: please help me solve this.
I don't know how to start.
(3+10i)^2

Click here to see answer by jim_thompson5910(35256)

Question 182634: please help me solve this.
I don't know how to start.
(3+10i)^2

Click here to see answer by Alan3354(69443)

Question 183009: If the expression: 5t + 8/3t - 7 is to make sens the values that t can take must be restricted. State the restriction on t.
Please help I do not understand this question at all.
Click here to see answer by jim_thompson5910(35256)

Question 183248: z^2-10z-24
Click here to see answer by jim_thompson5910(35256)

Question 183249: 3x^2-4x-4
Click here to see answer by jim_thompson5910(35256)

Question 183246: 25v^2-9
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Question 183572: How do you solve a little tiny, micro, algebreic equation if it just happen to be 3X+34+3X+4-2X+5X-23-+34=1243
Click here to see answer by stanbon(75887)

Question 183637: I am horrible with absolute value and also imaginary numbers. Could you please help me with: What is the absolute value of 6-8i ?
Click here to see answer by jim_thompson5910(35256)

Question 183778: (sqrt 18)/(2isqrt 6)
Click here to see answer by stanbon(75887)

Question 183789: Express the product of 4-3i and 2+i in simplest a+bi form.
Thank You!!!
Click here to see answer by jim_thompson5910(35256)

Question 184166: please help me solve the equation: also could you explain how to solve it
Click here to see answer by stanbon(75887)

Question 184325: (2+3i)(2-3i)
Click here to see answer by solver91311(24713)

Question 184324: Simplify
1/2-i
Click here to see answer by solver91311(24713)

Question 184323: Simplify
(6i)^2
Click here to see answer by jim_thompson5910(35256)

Question 184328: I have this problem for homework and I have utterly no idea how to go about this. My tutor (who assigned it in the first place) even told me to guess on the answers. Even still, I don't have a clue what it means. It's two parts:
a) Suppose that a+bi is multiplied by 1+i. By how many degrees must the arrow from (0,0) to (a,b) be rotated to coincide with the arrow from (0,0) to the product?
b) Suppose that a+bi is multiplied by √3+i. By how many degrees must the arrow from (0,0) to (a,b) be rotated to coincide with the arrow from (0,0) to the product?
To start, I thought the most rational thing to do was to multiply (for part a) a+bi by 1+i, and that gets me a+ai+bi-b. But I don't know what to do after that! I guess if I understood part a, I would be able to do part b, but I thought I should write the whole thing just in case.
Please help!
Click here to see answer by jim_thompson5910(35256)

Question 184912: (-1+i)2
Click here to see answer by checkley77(12844)

Question 185656:
Click here to see answer by Alan3354(69443)

Question 186576: Perform the complex number operations and write the answer in the a+bi form.

2i + 3 - i / 2 + 5i

Click here to see answer by stanbon(75887)

Question 186575: Perform the complex number operations and write the answer in the a + bi form.

2i + (3 - i) / (2 + 5i)

Click here to see answer by ankor@dixie-net.com(22740)

Question 186670: how do you solve, step by step,: x(2+6i)+y(3+8i)=-6-14i?
Click here to see answer by jim_thompson5910(35256)

Question 186670: how do you solve, step by step,: x(2+6i)+y(3+8i)=-6-14i?
Click here to see answer by vleith(2983)

Question 186670: how do you solve, step by step,: x(2+6i)+y(3+8i)=-6-14i?
Click here to see answer by Edwin McCravy(20054)

Question 186676: how do you simplify 5√(-6)*4√(-10)
Click here to see answer by jim_thompson5910(35256)

Question 186676: how do you simplify 5√(-6)*4√(-10)
Click here to see answer by Alan3354(69443)

Question 186677: how do you solve 3x+8yi=15-32i
Click here to see answer by jim_thompson5910(35256)

Question 186847: (-6+2i)(7-i)(4+3i)
Click here to see answer by jim_thompson5910(35256)

Question 187179: If z = icot(theata), show that (z+1)/(z-1)= cis(-2(theata))
Click here to see answer by kev82(151)

Question 187383: The sum of a number and its reciprocal is 10/3. Find the number.
Click here to see answer by Alan3354(69443)

Question 187381: Find all numbers with the property that when the number is added to itself the sum is the same as when the number is multiplied by itself.
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Question 187384: Find the base (b) and height (h) of a triangle with an area of 2 square feet if its base is 3 feet longer than its height and the formula for area is A=1/2bh
Click here to see answer by jojo14344(1513)

Question 187478: how do you write the expression as a complex number?

(-4+2i) + (6+2i) ??

its algebra 2...
Click here to see answer by Alan3354(69443)

Question 187577: Please perform the operation of the following complex number. The answer should be in a + bi form: i(2+i)(3-2i)
I am an older student who has been out of highschool for 27 years. I tried the foil method of the 2 sets of parentheses, then applied the outer i, but my answer was incorrect. Thank you.
Click here to see answer by Alan3354(69443)

Question 187613: how do i simplify the properties of rational exponents?
Click here to see answer by user_dude2008(1862)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380